Device for making rolls of paper



.Y 1,633,595 -Jlm 28 1927- H. LIEBECK l DEVICE FORV MAKING ROLLS OFPAPER Filed Ausl. l5. 1'923 FIG? Patented June 28, 1927.

UNITED s'rafnazs`v PATENT OFFICE.

HARRY LIEBEC, OF SWARTHMORE, PENNSYLVANIA, ASSIGNOR T0 SCOTT PAPERCOMPANY, A CORPORATION OF PENNSYLVANIA.

DEVICE FOR MAKING ROLLS 0F PAPER.

Application filed: August 15, 1923. Serial No. 657,535.

The object of my invention is to provide a winding device for winding aweb of paper into roll formand especially adapted to the delivery end ofpaper making machines, and particularly that class of .machines wherethe web is formed into rolls immediately j after leaving the dryers.

My object is also to so construct the winding apparatus that it willautomatically receive a mandrel while the paper web is being wound upona second mandrel which automatically discharges itself when fully wound,whereby it isv removed from vthe winding devices to a support to providespace to permit positioning the additional mandrel to which the paperweb from the paper making machine is attached for windmg a new roll ofpaper so that the several rolls of paper may be formed in succes-` sionwithout any interference with the running of the aper making machine.More speciiically considered, my invention consists of a rotating drumor cylinder combined with mandrel carrying means adjacent to its endsand circumferentially adjustable about the axis of the cylinder, saidmeans adapted' to receive a mandrel when .in one position and to bereadily guided thereon when adjusted to the winding position, the rollof paper upon the mandrel resting directl upon the surface of therevolving cylin er with a frictional contact and to insure a constantsurface speed equivalent to that of the cylinder without positivegearing between the mandrel and cylinder, and guiding means for themandrel as it becomes loaded with paper and whereby the increasingdiameter of the paper roll pushes the mandrel out of the mandrelcarrying means and delivers it to-stationary supports, so that themandrel carrying means may be further adjusted circumfer- 'entially tobring the new mandrel' into the position formerly occupied by themandrel` which hasbeen automatically removed withV 3 is journaled, saidbearings acting as a bearing for a revolving cylinder or drum 4 which isloosely journaled thereon and provided with a belt wheel 5 which may bedriven by a belt 6, so that it is constantly rotating preferably at asurface speed equal to the surface speed of the web of paper 7 whichleaves the dryer end 8 of a paper making machine or other source ofpaper web. Any other means for rotating the cylinder 4 .may be employedin lieu of the belt 6 and belt wheel 5, if so desired.

Secured to the shaft 3 at the opposlte ends of the cylinder or drum 4are arranged mandrel carrying frames 9 which are rovided with` radialguide slots 10, preferably four in number, arranged e uidistant aboutthe axis of the shaft. As s own, it is desirable that thevguide surface11 on one side of the slot shall be prolonged beyond the end of theguide surface on the other side of the slot in each instance, thepurpose for which will presently appear. The depth of the to Fig. 1. Theshaft 3 is provided at one end with a worm wheel 14, the latter meshingwith a worm 15 'ournaled in stationary bearings 16 and provlded with ahand wheel 17, by which it may be rotated. Ittwill now be understoodthat by adjusting the worm wheel 14,. the shaft 3, together' with itsmandrel su porting frames 9, will be adjusted about t e .axis of thedrum 4, so that a mandrel received in one of the radial slots, asindicated in Fig. 1, may be transferred through an arc of 9()o to aposition adjacent to the stationary guides 18 in connection with thesupports 19 for the mandrel when carrying a roll -of paper. By employinga worm and worm wheel as a means for adjusting the mandrel carryingframe 9, it is manifest that the said frame will be held in any positionof adjustment which it may as- Yslots 10 should be suiicient to receivethe apparatus, the guiding rails of said frames being preferablyinclined slightly in a downward direction toward the Winding frames,

so that a mandrel will automatically roll toward the slotted portions ofthe frames 9 as said frames areadjusted. The end of the frames 20adjacent to the cylinder are extended upwardly to form notches toreceive the journals 12 of the mandrel and support the mandrel in suchposition that, as the frame 9 is adjusted in the direction of the arrow'(Fig. 4), the journals of the mandrels will pass over the short guide ofthe slot V10 and-be received upon the extended guide 11 thereof, andthus he lifted and fed into the slot in an automatic manner as theframes are adjusted to the position definitely shown in Fig. 1. Themandrel thus support.-

. ed will not'be rotating in contact with the surface of the drum, butis supported by the guide 20 (Fig. 4), and as it is in contact with theaper web, it will be performing a guiding un-ction. Later it will act tooperate immediatel upon the paper web to wind it into roll orm. When thecompleted rollis removed to the supports 19 and the frames 9 are furtheradjusted, the next mandrel is received from the guide frames 20 andcarried over to the position occupied by the former mandrel. The mandrelis then rotated continually, first by direct Contact with the cylinder,and secondly, by contact of the roll of paper which is being formedabout it. It is manifest, that the speed of rotation of the mandrelgradually lessens as the paper roll increases in diameter, thislessening of speed being desirable when the mandrel is beingautomatically lifted and guidedl up the inclined guides 18 of thestationary supports.

In positioningY the roll winding means in relation to the paper makingmachine, it will be observed that the paper is guided under a roller 22at such an elevation, that as the paper web passes from the said rollerto the Winding cylinder or drum 4 (Where the mandrel is located 4uponwhich the paper is being Wound), said web is guided against the undersurface of the other mandrel which is held in the mandrel supports 20preliminary to being-brought intobposition for making the paper roll, itbeing thus guided to the surface of the cylinder or drum 4 preceding theformation of the roll 13 of paper.

It will also be understood that while the winding devices are shown inconnection with the dry end of a paper making machine, the said devices'may receive paper from any other source, such as when a large roll ofpaper is to be divided into secondary of paper is slitted into narrower.webs and the narrower webs are wound as individual rolls, although theymight be wound on the same mandrel or upon cores on the. same mandrelshaft, as will be readily understood by those familiar' with papermanufacture.

In the construction shown in Fig. 1, it will be lnoted that. themandrels are fed down an incline into the slot ol the mandrelsupport-ing means, and on the other hand, the mandrel having the paperroll thereon is delivered upward over an inclined guiding support, andwhile this is desirable, it is not essential to the spirit of myinvention, as will be understood by reference to the 'modifiedconstruction shown in Fig. 3.

Fig. 3 shows the general construction of the apparatus to be the same asin Fig. 1, but the radial slots for receivingtheljournals of themandi-els are somewhat diii'erent in specific construction andsimilarly, the supports for the mandrel by which they are delivered tothe mandrel carrying frame and the manner in which they are dischargedfrom the frame when the paper is wound upon them is also somewhatdifferent. In this case, the radial slots are curved, as at 10, andwhile one-of the guiding edges of the slot is extended beyond the other,as at 11. (corresponding to Fig. 1), the other guiding edge l()b of theslot has near its end a notch 10c. The supports 20 for the mandrelswhich are to be delivered to the adjustable mandrel supporting frame 9,instead of forming a straight incline downward toward the cylinder 4,are arranged on an incline upwardly, as at 20, and these guides neartheir outer ends are yprovided with depressed portions 20h formingsockets in which the journals et' the mandrel are received and wherebythe 'mandrel is positioned at a distance from the cylinder, as'will beclearly understood by reference t0 Fig. 3. It will now be understoodthat as the frame 9 is adjusted in the direction of the arrow, the longarm 11 will pass under the journal of the mandrel and Will cause ittoroll inward toward the cylinder at the same time having its weightlargely supported upon the upwardly curved guides 20EL until it occupiesthe position indicated. It will also be understood that the otheruppermost guide slot 10 to the right of the axis of the cylinder', willbe similarly provided with a mandrel which, during the course of theoperation, will be largely wrapped with the paper roll, as shown, andduring the Wrapping operation, the mandrel will be pushed outwardgradually in the slot and the journals thereof will ultimatelyfall intothe recessed portion 10", and the inen y All

cline of said portions will move the mandrel quickly just far enough toremove the pressure of the paper on the cylinder 4, which will arrestthe further winding. The .frames 9 and their shaft 3 may then beadjusted in the direction of the arrow to lower the mandrel with thepaper roll formed thereon until it will roll out of the recesses 1()eand be received upon the guides 19a which, being inclined, will causethe paper roll to roll away from the winding devices. At the same time,the new mandrel 13 will be brought tothe new position by the adjustmentot the worm and worm wheel and the paper web Would be severed andattached to yhe new mandrel, preliminary to a new roll of paper beingwound thereon. In this case, gravity insures the discharge of the paperroll, whereas in Fig. 1, the increasing diameter of the paper itself wasemployed to cause the mandrel to ride up on the guides when removing thepaper roll automatically from, the support. ln respect to the otherguide 20a, the mandrel is moved along the same before being in the fullcustody of the mandrel supporting frames 9, but in this case, themandrel is pushed along'the guides i203 by the arms of the mandrelsupporting trame 9 instead ot rollingtoward the cylinder by gravity. ltis manifest, however, that a guide, such as 20 of Fig. 1, may be usedwith this modified form of apparatus if so desired.

ln the general construction and operation,

*` 'the devices of Figs. 1 and 3 are similar in 1he main,

The special function of the curvature of he edge 1Gb of the slot 10a isto gradually decrease the angle or" the slot to a horizontal as the rollincreases, with the result that the weight of the roll and `.mandrelupon the surface of the drum l gradually decreases the weight of theroll increasesso that g .the friction and pressure upon the cylinder '-iremains substantially constant for all wound roll diameters. By reasonof this, the crushing strain upon the paper roll is maintained at aminimum and hence no' damage is done to the paper by the increasingweight of the roll itself.

llt will now be apparent that I have devised a novel and usefulconstruction which embodies the features of advantage enu-l merated asdesirable, and while I have in the present instance shown anddescribedthe preierred embodimentv thereof which has found in practice to givesatisfactory and reliable results, it is to be understood that l do notrestrict myselt' to the details,

' :ve the are susceptible of modication ya i-i 1. In a machine of thecharacter stated, the combination of a revolving cylinder, an adjustableframe providing guides at each end of the cylinder for supportingmandrels upon `which paper webs are to be wound and adjustable about ahorizontal axis, said guides having radial guide surfaces whereby themandrel may move outwardly in said guides as the-paper roll increases indiameter by its action in pressing upon the revolving cylinder,detachable mandrels having journaled ends engaging the guides, means foradjusting the mandrel supporting frame about its axis and holding it inpositions ot adjustment whereby the mandrels may be supported at ahigher elevation than the axis of the cylinder and press toward thesurface of the rcylinder by gravity, and lneans at the discharge side ofthe cylinder and independent of the adjustable mandrel supporting framehaving inclined guides in alinement with the mandrel guides on theadjustable frame for automatically receiving and supporting the mandrelwith the paper roll thereon after it leaves the Vadjustable supportingframe.

2. The invention according to claim 1, wherein further, an inclinedsupporting frame is arranged at the front or receiving part of themachine for automatically guiding and supporting a mandrel in positionto be automatically received in contact with the cylinder and with itsends in the guides ot the adjustable frame preliminary to its being.raised and adjusted to position for receiving the web of paper whilebeing wound into the finished roll.

3. The invention according to claim 1, wherein the adjustable frame iscapable of complete revolution and isprovided with a plurality of guidesfor the mandrels arranged in spaced relation about the axis of theadjustable frame whereby a plurality of mandrels may be supportedthereby at one time.

4. The invention according to claim 1, wherein the guides on the mandrelsuporting frame are formed 1n which one guiding edgle of each'of theslots is extended beyond t e other, whereby said extended guiding edgesass' under the' journals of the' mandrel for li ting 'and guiding theminto the slots as-the mandrel supporting frame is adjusted about itsaxis.

5. ,The invention according to claim 1, wherein further, the receivingand su porting means for receiving the mandre with the roll of paperthereon are stationary and provided with upwardly inclined guiding edgesin alinement with the radial guides` of the adjustable mandrel suporting frames whereby the mandrels may be automatically' passed fromthe custody of the radial guides and the frame in which they are formedto and upon the stationary receiving and supllO as radial slots and yable roll to a position clear of the adjustable frame and cylinder.

6. The invention according to claim 1, wherein the adjustable mandrelcarrying frame and 'revolving cylinder having a common axis and theformer is provided with a Worm wheel by which it may be rotated aboutthe axis of the cylinder, combined with a worin by which the worm wheeland the frame may be adjusted and held in adjusted position during theWinding o erations by the revolving cylinder.

7. Winding machine for winding webs of paper in roll 4form whichconsists of a rotating cylinder, combined with an adjustframecircumferentially adjustable about the axis of the cylinder and having aplurality of guiding means thereon spaced about its axis and extendingbeyond the perimeter of the cylinder, means for adjusting the frame witha step by step motion and holding it fixedly in its adjusted positions,-and a plurality of mandrels upon which the paper is to be wound eachdetach-l ably supported at the Sametime in respective portions of theplurality of guiding means which are above the axis of the adjustableframe whereby they have capacity for rotating in contact with therevolving cylinder and free to move radially relatively'thereto duringthe respective and successive winding of the paper web upon them.-

8. The invention according to claim 47, wherein further, means areprovided for automatically vdelivering a mandrel to the adjustable frameat one side of the axis of the cylinder and for receiving the mandrelwith the paper roll upon it from the other ,side of the axis of thecylinder.

9. The invention according to claim 7, wherein' further, the guidingvmeans on the adjustable frame consists of curved slots projecting. in aradial direction from the frame.

10. In a mechanism of the class described, in combination with a contactdrum* for propelling web material, a rotatable member for supporting aplurality of reels for simultaneous co-action with said drum', and meanson said rotatable member for permitting movement of said reels away fromsaid drum as the web material is Wound on said reels. l

11. In a mechanism of the class described, a contact drum, a reeladapted to be rotated and partially supported by co-action with saiddrum for winding web material thereon, and a rotatable 'member having aplurality of means thereon for guiding and supporting a plurality ofreels `for simultaneous co-action with said drum.y j

l2. In a mechanism of the class described, a contact drum, a reeladapted .to be rotated and partially supported by co-action with saiddrum for winding web material thereon, a rotatable memberhavi'ng aplurality of means thereon for guiding and supporting a plurality ofreels for simultaneous coaction with said drum, and means for rotatingsaid member continuously in one direction to bring successive reels intoco-action with said drum..

- 13. In a mechanism of the class described,

unto set my hand.

HARRY LIEBECK.

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